[Advances in acid resistant mechanism of acetic acid bacteria and related quorum sensing system].

微生物学报 Pub Date : 2017-03-04
Kai Xia, Junli Zhu, Xinle Liang
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引用次数: 0

Abstract

Acetic acid bacteria (AAB) are obligately aerobic Gram-negative bacteria. Known for their ability to oxidize ethanol to acetic acid and robust tolerance to acetic acid, AAB have been widely used in industrial vinegar fermentation. Besides the incomplete oxidative ability, investigation of their resistance mechanisms to acetic acid is intriguing and crucial for high titer vinegar production. In this review, we evaluated a variety of resistant pathways involved in carbohydrate metabolism, protein metabolism, lipid metabolism, and stress response based on genomics and proteomics investigations in AAB. Specifically, the discovery in modules related to quorum sensing (QS) system in Komagataeibacter species and the emerging genome data of AAB opens a new window to screen acid resistance regulatory networks, which may promote industrial strain breeding and fermentation optimizing. We reviewed the latest research progress of quorum sensing in acetic acid bacteria based on the brief introduction of genomic and proteomic studies.

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[醋酸细菌耐酸机理及相关群体感应系统研究进展]。
醋酸菌(AAB)是专需氧革兰氏阴性菌。AAB具有将乙醇氧化为乙酸的能力和对乙酸的耐受性,在工业醋发酵中得到了广泛的应用。除了不完全的氧化能力外,研究它们对醋酸的抗性机制对高滴度醋的生产至关重要。在这篇综述中,我们基于基因组学和蛋白质组学研究,评估了AAB中涉及碳水化合物代谢、蛋白质代谢、脂质代谢和应激反应的多种抗性途径。具体而言,Komagataeibacter物种群体感应(quorum sensing, QS)系统相关模块的发现和新出现的AAB基因组数据为筛选耐酸调节网络打开了新的窗口,可能促进工业菌株的选育和发酵优化。本文在简要介绍基因组学和蛋白质组学研究进展的基础上,综述了醋酸细菌群体感应的最新研究进展。
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来源期刊
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7960
期刊介绍: Acta Microbiologica Sinica(AMS) is a peer-reviewed monthly (one volume per year)international journal,founded in 1953.It covers a wide range of topics in the areas of general and applied microbiology.The journal publishes original papers,reviews in microbiological science,and short communications describing unusual observations. Acta Microbiologica Sinica has been indexed in Index Copernicus (IC),Chemical Abstract (CA),Excerpt Medica Database (EMBASE),AJ of Viniti (Russia),Biological Abstracts (BA),Chinese Science Citation Database (CSCD),China National Knowledge Infrastructure(CNKI),Institute of Scientific and Technical Information of China(ISTIC),Chinese Journal Citation Report(CJCR),Chinese Biological Abstracts,Chinese Pharmaceutical Abstracts,Chinese Medical Abstracts and Chinese Science Abstracts.
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